12results about How to "Unified security" patented technology

The application belongs to the technical field of composite hydrogen storage, in particular to an improved composite hydrogen storage device for hydrogen storage and a use method thereof, which comprises a hydrogen storage tank body and a solid-state hydrogen storage module arranged in the hydrogen storage tank body, the solid-state hydrogen storage module is filled with a hydrogen storage alloy, and an end interface for hydrogen charging and discharging is arranged on an end cover of the hydrogen storage tank body; the solid-state hydrogen storage module comprises a first hydrogen storage unit and a second hydrogen storage unit arranged axially along the hydrogen storage tank body, and a filtering unit arranged between the end interface and the first hydrogen storage unit; the filtering unit is arranged to be slidable, and the pressure difference between the high-pressure area naturally formed between the end interface and the first hydrogen storage unit and the low-pressure area at the bottom of the tank body during hydrogen charging is used as a driving force, during hydrogen charging, the pressure difference drives the filter screen body to avoid the main flow field, thereby reducing the airflow resistance and ensuring high-speed and high-efficiency hydrogen charging.

The invention discloses a variable magnetic adsorption suspended steel beam defect detection robot, and belongs to the technical field of wall-climbing robots, the variable magnetic adsorption suspended steel beam defect detection robot comprises a main body frame, a variable magnetic adsorption device, a detection device and a controller, and the main body frame is provided with a walking device; the variable magnetic adsorption device comprises a supporting device, a plurality of electric telescopic rods and a permanent magnet array plate, the supporting device is movably mounted at the bottom end of the main frame, the plurality of electric telescopic rods are mounted at the bottom end of the supporting device, and the permanent magnet array plate is mounted at the output ends of the plurality of electric telescopic rods; the detection device is mounted at the top end of the main body frame; and the controller is mounted on the main body frame and is electrically connected with the electric telescopic rod, the detection device and the walking device. The air gap between the permanent magnet and the surface of the steel beam can be dynamically adjusted according to different thicknesses of the steel beam and the crawling requirements of the steel beam on different surfaces such as the top wall, the side wall and the bottom wall, so that the required adsorption force is accurately matched; not only is the adsorption reliability ensured, but also extra friction and energy waste caused by too large adsorption force are avoided.

The invention discloses an intelligent train operation control system which comprises the following four subsystems which are in communication connection through the same control network: a driver monitoring subsystem which is configured to be used for monitoring the state of a driver and implementing graded safety response; the man-machine co-driving subsystem is configured to provide driving assistance and convert driving experience into system parameters; the self-adaptive protection subsystem is configured to dynamically optimize an operation strategy and protection parameters based on reinforcement learning; the automatic driving subsystem is configured to realize autonomous perception, decision and control of the environment; wherein the four subsystems are integrated in an existing train operation control framework. Dynamic adjustment of the protection parameters is achieved based on reinforcement learning, and the operation efficiency is greatly improved on the premise that safety is guaranteed.

The invention discloses a production process of a new material for paper decoration, and relates to the technical field of decoration material production, the dependence on natural mineral products is abandoned, renewable plant fiber paper is adopted as a core base material, the radioactive risk of a raw material source is eliminated, and the environmental safety of long-term indoor use of the material is ensured; in order to solve the problems that paper is insufficient in strength and poor in weather resistance, a composite modifier containing waterborne polyurethane resin and nano silicon dioxide is designed, the modifier fully permeates into the interior and gaps of a paper fiber network through an ultrasonic-assisted impregnation technology, and in the subsequent drying and hot pressing process, the strength of the paper is greatly improved. The resin is crosslinked and has a synergistic effect with the nanoparticles, a compact organic-inorganic hybrid protection layer is formed on the surfaces of the fibers and among the fibers, and the protection layer obviously enhances the mechanical strength, wear resistance and moisture resistance of the paper, so that the paper meets the use requirements of decorative plane materials, and meanwhile, unification of safety and economical efficiency is realized.

This application discloses a remote monitoring system for coal blending and combustion in a tower boiler, comprising: a data acquisition and preprocessing module; a coal quality analysis and blending optimization module; a combustion state identification and coking early warning module; a wall temperature dynamic prediction and overheating early warning module; a multi-objective collaborative control module; and a remote monitoring and visualization platform. This application improves the economic efficiency and coal type adaptability of coal blending and combustion. The system constructs a dynamic coal quality characteristic map, links coal yard zoning with real-time coal quality data, and combines a multi-objective optimization model to automatically generate the blending scheme with the lowest overall cost under the premise of meeting load, emission, and safety constraints. By introducing a dynamic risk cost term, safety hazards such as coking, corrosion, and overheating are quantified as part of the optimization objectives, enabling the scheme to proactively avoid high-risk coal combinations while reducing fuel procurement costs, achieving a balance between economic efficiency and safety.

The application discloses a cross-domain perception self-evolution energy storage battery management system and a protection method thereof, and belongs to the technical field of energy storage battery management. The system comprises a perception unit, a data fusion unit, an algorithm core unit and a collaborative control unit. The perception unit collects cell microstate, battery body operation and external scene parameters; the data fusion unit pre-processes and outputs a feature vector; the algorithm core unit comprises a double-cycle AI algorithm module of online incremental learning and offline iterative updating, and a digital twin engine module for constructing a special twin for each cell; and the collaborative control unit allocates and schedules tasks according to the cell health state, and reversely requests load adjustment in an abnormal situation. The application realizes accurate cell state perception, model self-evolution updating and health constraint collaborative control, and improves the safety, economy and cycle life of the energy storage system.

The application provides a track topology mapping, positioning and predictive control method and system based on electrical load fingerprints, which comprises the following steps: acquiring motor armature voltage signals and motor armature current signals of a motor driving device in real time; estimating the real-time rotating speed of the motor according to the motor armature voltage signals and the motor armature current signals, and time-integrating the real-time rotating speed to obtain real-time virtual mileage; mapping the motor armature current signals in the time domain to the virtual mileage coordinate system to form the motor armature current signals in the space domain, and taking the motor armature current signals in the space domain as the current load characteristic signals; performing sequence matching on the current load characteristic signals and the reference load fingerprint atlas to determine the absolute position of the motor driving device on the track; acquiring the road section characteristics within the predetermined virtual mileage ahead from the reference load fingerprint atlas according to the absolute position; and generating predictive safety instructions if the road section characteristics indicate that the area ahead is a high-load risk area. The application enhances the position sensing and intelligent control functions.

The invention discloses an out-of-water shutdown detection method and device for an underwater robot. The method comprises the steps that posture changes of the underwater robot are monitored; if the posture change meets the preset posture sudden change condition, a walking mechanism of the underwater robot is controlled to stop moving, a water pump motor of the underwater robot is controlled to be increased to the detection rotating speed higher than the working rotating speed from the working rotating speed, and the current value of the water pump motor is obtained; the current value is compared with a preset current threshold value, and whether the underwater robot leaves water or not is judged according to the comparison result. By fusing posture sudden change triggering and current detection in a high-speed state of the water pump, the load difference between water and air is amplified while sensor misjudgment caused by water drop attachment is avoided, so that whether the underwater robot leaves water or not can be quickly, accurately and reliably identified, a walking mechanism can be locked in the judgment process, and the safety of the underwater robot is improved. And the potential safety hazard that the machine accidentally moves on the land after leaving the water is eliminated.

This utility model relates to the field of tables and benches, and in particular to a tea-brewing table and bench, comprising a table body including a tabletop and a first support frame located below the tabletop. A hole is provided at the center of the tabletop. The first support frame is a ring-shaped support frame with a vertical projected area smaller than the projected area of ​​the tabletop. A functional compartment, installed in the hole, is either a storage basket or a stove body. The stove body includes the functional compartment and an induction cooker or charcoal stove that can rotate 180° around a horizontal axis, installed inside the functional compartment. Through the synergistic effect of the hourglass-shaped structure of the ring support frame (a combination of first rings with diameters increasing and decreasing from bottom to top) and the rotating stove body mechanism (a functional compartment with a limiting groove and a T-shaped block mounting bracket), structural stability is ensured while providing legroom that conforms to the user's sitting posture curve. The largest diameter ring is precisely positioned within the ankle height range.

The application discloses an aero-engine oil system flushing method, and belongs to the technical field of aero-engine maintenance. The method comprises the following steps: evaluating and calculating the proportion K of the oil in the oil tank of the oil system in the whole oil system; determining the replacement number n of the oil in the oil tank, and replacing the oil in the oil tank; after replacing the oil in the oil tank each time, performing oil flushing and mixing: starting the engine to perform cold running, and performing the next step according to the engine cold running condition; if the engine cold running is abnormal, cleaning metal scraps and then starting the engine to perform cold running again; if the engine cold running is normal, then determining the slow-speed running time t of the slow-speed state to perform slow-speed running. The application directly locks the final cleanliness and the execution number, eliminates the old oil pollution risk, realizes scientific and standardized process control, realizes optimal control of the process, significantly improves the comprehensive benefits, realizes the unity of safety and economy, and provides guarantee for ensuring the engine overhaul interval.

The invention discloses an air fryer with variable capacity. Comprising a base, a guide rail assembly vertically arranged on one side of the base, a sliding seat in sliding fit with the guide rail assembly, a heating machine head connected with the sliding seat, an elastic reset piece, a locking assembly movably arranged on the side face of the guide rail assembly, an unlocking assembly arranged at the upper end of the guide rail assembly and at least two pot bodies capable of being placed on the base. During use, the press-down machine head can drive the sliding seat to move downwards along the guide rail, and the locking assembly automatically locks the press-down machine head at the corresponding height, so that the press-down machine head is adaptive to pot bodies with different heights; locking can be released by operating the unlocking assembly, the elastic reset piece immediately drives the sliding seat and the machine head to automatically reset to the top end of the guide rail, and the pot body is convenient to replace. According to the structure, convenient adjustment and automatic reset of the height of the machine head are achieved, the machine head does not need to be disassembled, operation is easy, and sanitary and potential safety hazards caused by independent placement of the machine head are avoided.

The invention discloses a low-voltage distribution network intelligent fault positioning and recovery system based on village and town resource adaptation, and relates to the technical field of alternating-current distribution networks. The at least one boundary layer control master station is deployed in a power distribution area of a village and town and is in communication connection with the cloud layer master station; the plurality of end-layer intelligent terminals are deployed at distribution line nodes and distributed resource sides and are in communication connection with the belonging side-layer control master stations; wherein the boundary layer control master station at least comprises a resource portrait modeling module, a local plan library management module, a communication state monitoring module and a fault intelligent positioning and autonomous recovery decision engine. According to the system, through a cloud-side-end off-line autonomous architecture, the problem that a centralized system breaks down due to communication interruption of villages and towns is solved. When the communication is interrupted, the local side layer master station can complete fault processing and power supply recovery according to a pre-stored plan and real-time data, the communication vulnerability is converted into a tolerable working condition from a fatal weak point, and automatic rapid power recovery under the condition of unreliable communication is realized.